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Rulemaking Documents Search

The following DOT Rules are linked to the Federal Register website. The Federal Register is the Federal Government’s official daily publication of rules, proposed rules, and notices of federal agencies, and provides a forum for public participation in the democratic process.

To learn more about DOT Rules, choose a document type, topic, or conduct a title search by keyword. Results will include a summary of the Rule and a link to the PDF of the appropriate Federal Register page. The Federal Register provides rulemaking documents dating back to 1995.

If you need to see rules prior to 1995, please visit our rulemakings archives:

Hazardous Materials Safety Rulemaking Archive

Pipeline Safety Rulemaking Archive
Your search for Documents of type Rule or Proposed Rule, affecting 49 CFR 100-199, and about Air carriers
Results 1 - 50 of 70
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) proposes to amend the Hazardous Materials Regulations (HMR) to maintain alignment with international regulations and standards by incorporating various amendments, including changes to...
  • In consultation with the Federal Aviation Administration (FAA), PHMSA proposes to amend the Hazardous Materials Regulations (HMR) to align with current international standards for the air transportation of hazardous materials. The proposals in this...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) proposes to amend the Hazardous Materials Regulations (HMR) to maintain consistency with international regulations and standards by incorporating various amendments, including changes...
  • In this final rule, the Pipeline and Hazardous Materials Safety Administration (PHMSA) is amending the Hazardous Materials Regulations (HMR) to make miscellaneous amendments in order to update and clarify certain regulatory requirements. These...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) is issuing a final rule to prohibit passengers and crewmembers from carrying battery-powered portable electronic smoking devices (e.g., e-cigarettes, e-cigs, e-cigars, e-pipes,...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations. The intended effect of this rule is to enhance...
  • PHMSA is issuing an interim final rule to prohibit passengers and crewmembers from carrying battery-powered portable electronic smoking devices (e.g., e-cigarettes, e-cigs, e-cigars, e-pipes, e- hookahs, personal vaporizers, electronic nicotine...
  • PHMSA proposes to make miscellaneous amendments to the Hazardous Materials Regulations to update and clarify certain regulatory requirements. These proposed amendments are designed to promote safer transportation practices, address petitions for...
  • PHMSA is amending the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions, packaging...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA, in consultation with the Federal Aviation Administration (FAA), is modifying the requirements governing the transportation of lithium cells and batteries. This final rule revises hazard communication and packaging provisions for lithium...
  • PHMSA, in coordination with the Nuclear Regulatory Commission (NRC), is amending requirements in the Hazardous Materials Regulations (HMR) governing the transportation of Class 7 (radioactive) materials based on recent changes contained in the...
  • The Pipeline and Hazardous Materials Safety Administration is amending the Hazardous Materials Regulations (HMR) to adopt provisions contained in certain widely used or longstanding special permits and certain competent authority approvals...
  • This final rule corrects editorial errors and amends certain requirements in response to administrative appeals submitted by persons affected by certain final rules published in the Federal Register.
  • PHMSA is amending the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions, packaging...
  • This document responds to administrative appeals generated as a result of certain amendments adopted in an international harmonization final rule published on January 19, 2011. The January 19, 2011 final rule amended the Hazardous Materials Regulations...
  • The Pipeline and Hazardous Materials Safety Administration is proposing to amend the Hazardous Materials Regulations to incorporate provisions contained in certain widely used or longstanding special permits and certain competent authority approvals...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • This document responds to administrative appeals and solicits public comment on proposals generated as a result of certain amendments adopted in an international harmonization final rule published in the Federal Register. The final rule amended the...
  • This document responds to administrative appeals, provides clarifications, and corrects typographical and other minor errors adopted in an international harmonization final rule published January 19, 2011 (HM-215K; 76 FR 3308). The final rule amended...
  • PHMSA, in coordination with the Nuclear Regulatory Commission (NRC), is proposing to amend requirements in the Hazardous Materials Regulations (HMR) governing the transportation of Class 7 (radioactive) materials based on recent changes contained in...
  • PHMSA is amending the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions, packaging...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA, in consultation with the Federal Aviation Administration (FAA), is proposing to amend requirements in the Hazardous Materials Regulations (HMR) on the transportation of lithium cells and batteries, including lithium cells and batteries packed...
  • On January 14, 2009, the Pipeline and Hazardous Materials Safety Administration (PHMSA) published a final rule amending the Hazardous Materials Regulations (HMR) to maintain alignment with international standards by incorporating various amendments,...
  • This final rule revises the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA is amending the Hazardous Materials Regulations (HMR) to permit certain fuel cell cartridges and fuel cell systems designed for portable electronic devices to be transported by passengers and crew in carry-on baggage on board passenger-carrying...
  • PHMSA is amending the Hazardous Materials Regulations to update, clarify or provide relief from certain requirements governing the classification, packaging, or labeling of hazardous materials transported in commerce. Among other provisions, PHMSA is...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR). The intended effect of this rule is to...
  • On January 31, 2007, PHMSA published a final rule that amended requirements in the Hazardous Materials Regulations applicable to the air transportation of compressed oxygen cylinders and oxygen generators. In response to appeals submitted by entities...
  • PHMSA is proposing to amend the Hazardous Materials Regulations (HMR) to permit certain fuel cell cartridges and fuel cell systems designed for portable electronic devices to be transported by passengers and crew in carry-on baggage on board...
  • The Pipeline and Hazardous Materials Safety Administration is amending the Hazardous Materials Regulations (HMR) to tighten the safety standards for transportation of lithium batteries, including both primary (non-rechargeable) and secondary...
  • In this final rule, PHMSA is amending the Hazardous Materials Regulations to revise and consolidate the requirements applicable to the use of the International Civil Aviation Organization's Technical Instructions for the Safe Transport of Dangerous...
  • PHMSA (also, ``we'' or ``us'') is amending the Hazardous Materials Regulations (HMR) to: require cylinders of compressed oxygen and other oxidizing gases and packages of chemical oxygen generators to be placed in an outer packaging that meets certain...
  • This final rule revises the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA proposes to make miscellaneous amendments to the Hazardous Materials Regulations based on petitions for rulemaking and PHMSA initiatives. These proposed amendments are intended to update, clarify or provide relief from certain regulatory...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR). The intended effect of this rule is to...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA is revising the transportation requirements for infectious substances, including regulated medical waste, to adopt new classification criteria, new exceptions, and packaging and hazard communication requirements consistent with revised...
  • This final rule amends the requirements in the Hazardous Materials Regulations (HMR) for the transportation of hazardous materials by aircraft. This final rule clarifies the applicability of part 175; clarifies the exceptions from regulation for...
  • In this notice of proposed rulemaking, the Pipeline and Hazardous Materials Safety Administration proposes to amend the Hazardous Materials Regulations by revising and consolidating the requirements applicable to the use of the International Civil...
  • This final rule revises terminology, definitions, and requirements for consistency with the Hazardous Materials Safety and Security Reauthorization Act of 2005. These amendments include revising the definitions of ``hazmat employee'' and ``hazmat...
  • On December 20, 2004, the Research and Special Programs Administration (RSPA)--the predecessor agency to the Pipeline and Hazardous Materials Safety Administration (PHMSA)--published a final rule under Docket Number RSPA-04-17036 (HM-215G) amending the...
  • PHMSA is proposing to revise the transportation requirements for infectious substances, including regulated medical waste, to adopt new classification criteria and packaging requirements consistent with revised international standards and to clarify...
  • RSPA is amending the Hazardous Materials Regulations (HMR) to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions, packaging...
  • To protect life and property, RSPA (we), working closely with the Federal Aviation Administration (FAA), is issuing an interim final rule imposing a limited prohibition on offering for transportation and transportation of primary (non-rechargeable)...
  • RSPA is proposing changes to the requirements in the Hazardous Materials Regulations (HMR) for the transportation of hazardous materials by aircraft. These proposed changes include clarifying the applicability of part 175; excepting cargo aircraft from...
  • RSPA is proposing to amend the Hazardous Materials Regulations (HMR) to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • RSPA proposes to amend the Hazardous Materials Regulations to require that cylinders of compressed oxygen and packages of chemical oxygen generators be placed in an outer packaging that meets certain flame penetration and thermal resistance...
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